%%% ==================================================================== %%% @METAFONT-file{ %%% author-1 = "Jeremy Gibbons", %%% author-2 = "Alan Jeffrey", %%% version = "1.1", %%% date = "02 June 1992", %%% time = "15:06:36 BST", %%% filename = "stmaryjg.mf", %%% address-1 = "Department of Computer Science %%% University of Aukland %%% Private Bag %%% Aukland %%% New Zealand", %%% address-2 = "School of Cognitive and Computing Sciences %%% University of Sussex %%% Brighton BN1 9QH %%% UK", %%% telephone-1 = "+64 9 373 7599 x 5120", %%% telephone-2 = "+44 273 606755 x 3238", %%% FAX-1 = "+64 9 373 7453", %%% FAX-2 = "+44 273 678188", %%% checksum = "58461 600 2192 23548", %%% email-1 = "jeremy@cs.aukuni.ac.nz", %%% email-2 = "alanje@cogs.sussex.ac.uk", %%% codetable = "ISO/ASCII", %%% keywords = "metafont symbols math fonts", %%% supported = "yes", %%% abstract = "This is part of the metafont program for %%% the St Mary's Road symbol font.", %%% docstring = "This is part of the metafont program for %%% the St Mary's Road symbol font. The font %%% contains a number of mathematical %%% characters which are not present in the %%% standard TeX and AMS symbol fonts. %%% %%% It is described in stmaryrd.tex. %%% %%% Copyright 1992 Jeremy Gibbons and Alan Jeffrey. %%% %%% The checksum field above contains a CRC-16 %%% checksum as the first value, followed by the %%% equivalent of the standard UNIX wc (word %%% count) utility output of lines, words, and %%% characters. This is produced by Robert %%% Solovay's checksum utility.", %%% package = "St Mary's Road", %%% dependencies = "none", %%% } %%% ==================================================================== %%% %%% 20 May 1991, v1.0: Created the file out of galileo.mf. %%% %%% 2 Jun 1992, v1.1: added the headers. % These are Jeremy's symbols for the St Mary's Road font, stmaryrd.mf. iff known short_left_arrow: cmchar "Short leftwards arrow"; compute_spread(.45x_height#,.55x_height#); beginchar(short_left_arrow,14u#,v_center(spread#+rule_thickness#)); adjust_fit(0,0); pickup crisp.nib; pos1(rule_thickness,90); pos2(rule_thickness,90); pos3(bar,0); pos4(bar,0); y0=y1=y2=math_axis; x1+.5rule_thickness=hround(w-u); lft x0=hround u; y3-y0=y0-y4=.24asc_height+eps; x3=x4=x0+3u+eps; pos5(bar,angle(z4-z0)); z5l=z0; pos6(bar,angle(z3-z0)); z6l=z0; z9=.381966[.5[z3,z4],z0]; numeric t; path p; p=z4r{z9-z4}..z6r; t=xpart(p intersectiontimes((0,y2l)--(w,y2l))); x2=xpart point t of p; filldraw z0..{z4-z9}z4l--subpath (0,t) of\\(z4r{z9-z4}..z6r) --z2l---z1l..z1r---z2r--subpath (t,0) of\\(z3r{z9-z3}..z5r) --z3l{z9-z3}..z0 & cycle; % arrowhead and stem penlabels(0,1,2,3,4,5,6,9); endchar; iff known short_right_arrow: cmchar "Short rightwards arrow"; compute_spread(.45x_height#,.55x_height#); beginchar(short_right_arrow,14u#,v_center(spread#+rule_thickness#)); adjust_fit(0,0); pickup crisp.nib; pos1(rule_thickness,90); pos2(rule_thickness,90); pos3(bar,0); pos4(bar,0); y0=y1=y2=math_axis; x1-.5rule_thickness=hround u; rt x0=hround(w-u); y3-y0=y0-y4=.24asc_height+eps; x3=x4=x0-3u-eps; pos5(bar,angle(z4-z0)); z5l=z0; pos6(bar,angle(z3-z0)); z6l=z0; z9=.381966[.5[z3,z4],z0]; numeric t; path p; p=z4l{z9-z4}..z6r; t=xpart(p intersectiontimes((0,y2l)--(w,y2l))); x2=xpart point t of p; filldraw z0..{z4-z9}z4r--subpath (0,t) of\\(z4l{z9-z4}..z6r) --z2l---z1l..z1r---z2r--subpath (t,0) of\\(z3l{z9-z3}..z5r) --z3r{z9-z3}..z0 & cycle; % arrowhead and stem penlabels(0,1,2,3,4,5,6,9); endchar; iff known short_up_arrow: cmchar "Upward arrow"; beginchar(short_up_arrow,9u#, if monospace: 27/7u#+math_axis#,27/7u#-math_axis# else: 6u#+math_axis#,6u#-math_axis# fi); italcorr .76asc_height#*slant+.5crisp#-u#; adjust_fit(0,0); pickup crisp.nib; pos1(rule_thickness,0); pos2(rule_thickness,0); pos3(bar,90); pos4(bar,90); lft x1l=hround(.5w-.5rule_thickness); y1-.5rule_thickness=-d; x0=x1=x2; top y0=h; x0-x3=x4-x0=3u+eps; y3=y4=y0-.24asc_height-eps; pos5(bar,angle(z4-z0)); z5l=z0; pos6(bar,angle(z3-z0)); z6l=z0; z9=.381966[.5[z3,z4],z0]; numeric t; path p; p=z4l{z9-z4}..z6r; t=xpart(p intersectiontimes((x2r,-d)--(x2r,h))); y2=ypart point t of p; filldraw z0..{z4-z9}z4r--subpath (0,t) of\\(z4l{z9-z4}..z6r) --z2r---z1r..z1l---z2l--subpath (t,0) of\\(z3l{z9-z3}..z5r) --z3r{z9-z3}..z0 & cycle; % arrowhead and stem penlabels(0,1,2,3,4,5,6,9); endchar; iff known short_down_arrow: cmchar "Downward arrow"; beginchar(short_down_arrow,9u#, if monospace: 27/7u#+math_axis#,27/7u#-math_axis# else: 6u#+math_axis#,6u#-math_axis# fi); italcorr .76asc_height#*slant+.5crisp#-u#; adjust_fit(0,0); pickup crisp.nib; pos1(rule_thickness,0); pos2(rule_thickness,0); pos3(bar,90); pos4(bar,90); lft x1l=hround(.5w-.5rule_thickness); y1+.5rule_thickness=h; x0=x1=x2; bot y0=-d; x0-x3=x4-x0=3u+eps; y3=y4=y0+.24asc_height+eps; pos5(bar,angle(z4-z0)); z5l=z0; pos6(bar,angle(z3-z0)); z6l=z0; z9=.381966[.5[z3,z4],z0]; numeric t; path p; p=z4r{z9-z4}..z6r; t=xpart(p intersectiontimes((x2r,-d)--(x2r,h))); y2=ypart point t of p; filldraw z0..{z4-z9}z4l--subpath (0,t) of\\(z4r{z9-z4}..z6r) --z2r---z1r..z1l---z2l--subpath (t,0) of\\(z3r{z9-z3}..z5r) --z3l{z9-z3}..z0 & cycle; % arrowhead and stem penlabels(0,1,2,3,4,5,6,9); endchar; iff known Y_up: cmchar "Fork (upside-down Y)"; beginchar(Y_up,10u#,6u#+math_axis#,5u#-math_axis#); pickup rule.nib; adjust_fit(0,0); x1=.5w; top y1=h-u; x2=x1; y2=math_axis; lft x3=u; rt x4=w-u; bot y3 = -d+u; y4=y3; draw z1--z2; draw z3--z2--z4; labels(1,2,3,4); endchar; iff known Y_down: cmchar "Join (Y)"; beginchar(Y_down,10u#,5u#+math_axis#,6u#-math_axis#); pickup rule.nib; adjust_fit(0,0); x1=.5w; bot y1=-d+u; x2=x1; y2=math_axis; lft x3=u; rt x4=w-u; top y3 = h-u; y4=y3; draw z1--z2; draw z3--z2--z4; labels(1,2,3,4); endchar; iff known Y_left: cmchar "Leftwards pointing Y -<"; beginchar(Y_left,11u#,5u#+math_axis#,5u#-math_axis#); pickup rule.nib; adjust_fit(0,0); lft x1=hround u; x2=6u; y1=y2=vround math_axis; rt x3=rt x4=hround(w-u); top y3=vround(h-u)+eps; bot y4=vround(u-d)+eps; draw z1--z2; draw z3--z2--z4; labels(1,2,3,4); endchar; iff known Y_right: cmchar "Rightwards pointing Y >-"; beginchar(Y_right,11u#,5u#+math_axis#,5u#-math_axis#); pickup rule.nib; adjust_fit(0,0); rt x1=hround(w-u); x2=5u; y1=y2=vround math_axis; lft x3=lft x4=hround u; top y3=vround(h-u)+eps; bot y4=vround(u-d)+eps; draw z1--z2; draw z3--z2--z4; labels(1,2,3,4); endchar; iff known var_curly_vee: cmchar "Zipwith symbol"; beginchar(var_curly_vee,12u#,asc_height#,asc_depth#); adjust_fit(0,0); pickup rule.nib; x2=good.x .5w; w:=r:=2x2; lft x1=0; x3=w-x1; top y1=h; bot y2=-d-o; y3=y1; x4=x2; y4=x_height; draw z1{z4-z1}..{down}z2; % left arm draw z3{z4-z3}..{down}z2; % right arm labels(1,2,3,4); endchar; iff known var_curly_wedge: cmchar "Upside-down zipwith symbol"; beginchar(var_curly_wedge,12u#,asc_height#,asc_depth#); adjust_fit(0,0); pickup rule.nib; x2=good.x .5w; w:=r:=2x2; lft x1=0; x3=w-x1; top y2=h; bot y1=-d-o; y3=y1; x4=x2; y4=h-(x_height+d); draw z1{z4-z1}..{up}z2; % left arm draw z3{z4-z3}..{up}z2; % right arm labels(1,2,3,4); endchar; iff known minus_o: cmchar "Above sign"; % Parts nicked from "plus" beginchar(minus_o,14u#,5u#+math_axis#,5u#-math_axis#); pickup rule.nib; adjust_fit(0,0); %x11=x12=good.x .5w; top y11=h+eps; .5[y11,y12]=math_axis; lft x13=hround u-eps; x14=w-x13; y13=y14=math_axis; %draw z11--z12; % stem draw z13--z14; % crossbar top y8=vround h-u-eps; y8-math_axis = math_axis-y4; x4=.5w; .5(y8-y4) = x2-x4; circle_points; draw_circle; % circle labels(1,2,3,4,5,6,7,8,13,14); endchar; iff known bar_o: cmchar "Beside sign"; beginchar(bar_o,10u#,6u#+math_axis#,6u#-math_axis#); pickup rule.nib; adjust_fit(0,0); x11=x12=good.x .5w; top y11=h+eps; .5[y11,y12]=math_axis; %lft x3=hround u-eps; x4=w-x3; y3=y4=math_axis; draw z11--z12; % stem %draw z3--z4; % crossbar lft x6=hround u; x2=w-x6; y2=math_axis; y8-y2 = .5(x2-x6); circle_points; draw_circle; % circle penlabels(1,2,3,4,5,6,7,8,11,12); endchar; iff known sslash: cmchar "Double forwards slash"; beginchar(sslash,9u#+slash_separation#,body_height#, paren_depth#); adjust_fit(0,0); pickup rule.nib; lft x2=hround u-eps; bot y4=bot y2=-d-eps; rt x3=hround(w-u)+eps; top y3=top y1= h+eps; x1=x3-hround slash_separation; x4=x2+hround slash_separation; draw z1--z2; draw z3--z4; penlabels(1,2,3,4); endchar; iff known bbslash: cmchar "Double backwards slash"; beginchar(bbslash,9u#+slash_separation#,body_height#, paren_depth#); adjust_fit(0,0); pickup rule.nib; lft x2=hround u-eps; bot y3=bot y1=-d-eps; rt x3=hround(w-u)+eps; top y4=top y2= h+eps; x1=x3-hround slash_separation; x4=x2+hround slash_separation; draw z1--z2; draw z3--z4; penlabels(1,2,3,4); endchar; iff known moo: cmchar "Moo (Chinese for `tree')"; beginarithchar(moo); pickup rule.nib; if .5w <> good.x .5w: change_width; fi x1= .5w; y1-y3=y3-y7; lft x3=hround 2u-eps; x4=w-x3; y3=y4=math_axis; z2 = .5[z3,z4]; lft x5=hround 2u-eps; x6=w-x5; y6=y5=.3[y7,y3]; x7 = .4[x5,x1]; x8=w-x7; bot y7 = vround -o; y8=y7; draw z1--z2{down}..z7{left}..z5; % left leg draw z1--z2{down}..z8{right}..z6; % right leg draw z3--z4; % crossbar labels(1,2,3,4,5,6,7,8); endchar; iff known var_o_times: cmchar "Circular circle-times operator"; begincircle(var_o_times); draw z1--z5; draw z3--z7; % diagonals labels(1,2,3,4,5,6,7,8); endchar; iff known var_o_ast: cmchar "Circular circle-asterisk operator"; begincircle(var_o_ast); z0=.5[z2,z6]; % centre of circle numeric ast_flare; ast_flare=hround .7[thin_join,stem]; for d=-150 step 60 until 150: z[d]=z0+.7dir d scaled (y8-y2); % ie scaled radius numeric theta; theta=angle(z[d]-z0); fill z0+.5(0,-thin_join)rotated theta ---z[d]+.5(-ast_flare,-ast_flare)rotated theta ..z[d]..z[d]+.5(-ast_flare,ast_flare)rotated theta ---z0+.5(0,thin_join)rotated theta--cycle; endfor % diagonal at angle |d| labels(0,[-150],[-90],[-30],30,90,150,1,2,3,4,5,6,7,8); endchar; iff known var_o_bar: cmchar "Circular circle-bar operator"; begincircle(var_o_bar); draw z4--z8; % bar labels(1,2,3,4,5,6,7,8); endchar; iff known var_o_dot: cmchar "Circle-dot operator"; begincircle(var_o_dot); fill fullcircle scaled(1.3dot_size+eps) shifted(.5[z4,z8]); % dot labels(1,2,3,4,5,6,7,8); endchar; iff known var_o_slash: cmchar "Circular circle-slash operator"; begincircle(var_o_slash); draw z1--z5; % diagonal labels(1,2,3,4,5,6,7,8); endchar; iff known var_o_bslash: cmchar "Circular circle-backslash operator"; begincircle(var_o_bslash); draw z3--z7; % diagonal labels(1,2,3,4,5,6,7,8); endchar; iff known var_o_circle: cmchar "Circular circle-circle operator"; begincircle(var_o_circle); z0=.5[z2,z6]; % centre of circle for i = 1 upto 8: z[i+8]=.5[z0,z[i]]; endfor; draw z16{right}...z9{z10-z16}...z10{down}...z11{z12-z10}...z12{left} ...z13{z14-z12}...z14{up}...z15{z16-z14}...cycle; % inner circle labels(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16); endchar; iff known var_o_plus: cmchar "Circular circle-plus operator"; begincircle(var_o_plus); draw z2--z6; draw z4--z8; % bar and stem labels(1,2,3,4,5,6,7,8); endchar; iff known var_o_minus: cmchar "Circular circle-minus operator"; begincircle(var_o_minus); draw z2--z6; % bar labels(1,2,3,4,5,6,7,8); endchar; % Changed hround to floor in the following to make sure that x1<>x2, % otherwise theta ends up being angle(0,0). AJ. iff known box_ast: cmchar "Box_ast operator"; beginbox(box_ast); z0=.5[z1,z3]; numeric ast_flare; ast_flare=hround .7[thin_join,stem]; for d=-150 step 60 until 150: z[d]=z0+.7dir d scaled .5(x2-x1); % ie scaled `radius' numeric theta; theta=angle(z[d]-z0); fill z0+.5(0,-thin_join)rotated theta ---z[d]+.5(-ast_flare,-ast_flare)rotated theta ..z[d]..z[d]+.5(-ast_flare,ast_flare)rotated theta ---z0+.5(0,thin_join)rotated theta--cycle; endfor % diagonal at angle |d| labels(0,[-150],[-90],[-30],30,90,150,1,2,3,4); endchar; iff known box_bar: cmchar "Box_bar operator"; beginbox(box_bar); draw .5[z1,z2]--.5[z3,z4]; labels(1,2,3,4); endchar; iff known box_dot: cmchar "Box_dot operator"; beginbox(box_dot); fill fullcircle scaled(1.3dot_size+eps) shifted(.5[z1,z3]); % dot labels(1,2,3,4); endchar; iff known box_slash: cmchar "Box_slash operator"; beginbox(box_slash); draw z2--z4; labels(1,2,3,4); endchar; iff known box_bslash: cmchar "Box_bslash operator"; beginbox(box_bslash); draw z1--z3; labels(1,2,3,4); endchar; iff known box_circle: cmchar "Box_circle operator"; beginarithchar(box_circle); if .5w <> good.x .5w: change_width; fi pickup rule.nib; autorounded; lft x11=hround 1.5u; x12=w-x11; x13=x12; x14=x11; y11-y14 = x12-x11; .5[y11,y14]=math_axis; y11=y12; y13=y14; lft x6=hround .25[x11,x12]; x2=w-x6; y2=math_axis; y8-y2 = .5(x2-x6); circle_points; draw_circle; % circle draw z11--z12--z13--z14--cycle; % box labels(11,12,13,14); endchar; iff known box_box: cmchar "Box_box operator"; beginbox(box_box); z0=.5[z1,z3]; for i = 1 upto 4: z[i+4]=.4[z0,z[i]]; endfor draw z5--z6--z7--z8--cycle; labels(1,2,3,4); endchar; iff known box_empty: cmchar "Box operator"; beginbox(box_empty); labels(1,2,3,4); endchar; % like LaTeX Box, only with less side bearing iff known lightning: cmchar "Lightning strike"; % Adapted from sswarrow beginchar(lightning,11u#,asc_height#,asc_depth#); adjust_fit(0,0); pickup crisp.nib; x1+.5rule_thickness=hround(w-u); lft x0=hround 3u; y1+.5rule_thickness=h; bot y0=-d; numeric theta,delta; theta=angle(z1-z0); delta=3u++.24asc_height; if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle pos1(rule_thickness,-90+theta); pos2(rule_thickness,-90+theta); pos3(bar,-180+theta); pos4(bar,-180+theta); %y3=y0; x4=x0; x3-x0=y4-y0=delta+eps; y10=y0; x11=x0; x10-x0=y11-y0=delta+eps; % Can now do arrows of any angle z3=z10 rotatedaround(z0,theta-45); z4=z11 rotatedaround(z0,theta-45); pos5(bar,theta+45); z5l=z0; pos6(bar,theta-45); z6l=z0; z9=.381966[.5[z3,z4],z0]; numeric t; path p; p=z4l{z9-z4}..z6r; t=xpart(p intersectiontimes (z1l--(z1l+2(z0-z1)))); z2l=point t of p; filldraw z0..{z4-z9}z4r --subpath (0,t) of\\(z4l{z9-z4}..z6r) % --z2l---z1l..z1r---z2r --subpath (t,0) of\\(z3l{z9-z3}..z5r) --z3r{z9-z3}..z0 & cycle; % arrowhead z20=.45[z1,z2]; z21=z22 + .55(z2-z1); x22=x1-3u; y22=y1; pickup rule.nib; draw z2--z20--z21--z22; % stem penlabels(0,1,2,3,4,5,6,9); endchar; iff known merge: cmchar "Merge symbol"; beginchar(merge,16u#,asc_height#,0); adjust_fit(0,0); pickup rule.nib; lft x1=hround 1.1u; x3 = .65[x1,x6]; x2 = .5[x1,x3]; y2=h+o; bot y1=0; y3 = y1; x6=w-x1; y6=y1; z4-z1 = z5-z2 = z6-z3; draw z1---z2---z3; % left-hand draw z4--z5--z6; % right-hand labels(1,2,3,4,5,6); endchar; iff known var_times: cmchar "Cartesian Product operator"; % bits of this taken beginchar(var_times,10u#,asc_height#,0); % from "exists" adjust_fit(0,0); pickup rule.nib; lft x1=hround u-eps; x2=x3=w-x1; x4=x1; top y1=h; bot y4=0; y2=y1; y3=y4; draw z1--z3; draw z2--z4; % diagonals labels(1,2,3,4); endchar; iff known fat_semi: cmchar "Fat semicolon"; beginchar(fat_semi,6u#,0.5[x_height#,asc_height#],comma_depth#); adjust_fit(0,0); pickup rule.nib; autorounded; lft x3=lft x7=hround u; rt x1=rt x5=hround(w-u); x2=x4=x6=x8=w/2; top y4=h; bot y6=0; y4-y2=y8-y6=x1-x3; y1=y3=0.5[y2,y4]; y5=y7=0.5[y6,y8]; lft x9=2u; bot y9=-d; draw z1..z2..z3..z4..cycle; draw z5{down}..z6..z7..z8..z5{down}..{curl 0}z9; labels(1,2,3,4,5,6,7,8,9); endchar; iff known ssw_arrow: cmchar "Southsouthwest arrow"; beginchar(ssw_arrow,11u#,asc_height#,asc_depth#); adjust_fit(0,0); pickup crisp.nib; x1+.5rule_thickness=hround(w-u); lft x0=hround 3u; % This 3u used to be a u in y1+.5rule_thickness=h; bot y0=-d; % the program for swarrow. % 3u (with width 11u) gives % arrow parallel to langle. numeric theta,delta; theta=angle(z1-z0); delta=3u++.24asc_height; if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle pos1(rule_thickness,-90+theta); pos2(rule_thickness,-90+theta); pos3(bar,-180+theta); pos4(bar,-180+theta); %y3=y0; x4=x0; x3-x0=y4-y0=delta+eps; y10=y0; x11=x0; x10-x0=y11-y0=delta+eps; % Can now do arrows of any angle z3=z10 rotatedaround(z0,theta-45); z4=z11 rotatedaround(z0,theta-45); pos5(bar,theta+45); z5l=z0; pos6(bar,theta-45); z6l=z0; z9=.381966[.5[z3,z4],z0]; numeric t; path p; p=z4l{z9-z4}..z6r; t=xpart(p intersectiontimes (z1l--(z1l+2(z0-z1)))); z2l=point t of p; filldraw z0..{z4-z9}z4r --subpath (0,t) of\\(z4l{z9-z4}..z6r) --z2l---z1l..z1r---z2r --subpath (t,0) of\\(z3l{z9-z3}..z5r) --z3r{z9-z3}..z0 & cycle; % arrowhead and stem penlabels(0,1,2,3,4,5,6,9); endchar; iff known sse_arrow: cmchar "Southsoutheast arrow"; beginchar(sse_arrow,11u#,asc_height#,asc_depth#); adjust_fit(0,0); pickup crisp.nib; x1-.5rule_thickness=hround u; rt x0=hround(w-3u); y1+.5rule_thickness=h; bot y0=-d; numeric theta,delta; theta=angle(z0-z1); delta=3u++.24asc_height; if abs(theta+45)<2.5: theta:=-45; y1:=y0+x0-x1; fi % near-45$^\circ$ angle pos1(rule_thickness,90+theta); pos2(rule_thickness,90+theta); pos3(bar,theta); pos4(bar,theta); %x3=x0; y4=y0; y3-y0=x0-x4=delta+eps; x10=x0; y11=y0; y10-y0=x0-x11=delta+eps; z3=z10 rotatedaround(z0,theta+45); z4=z11 rotatedaround(z0,theta+45); pos5(bar,theta+225); z5l=z0; pos6(bar,theta+135); z6l=z0; z9=.381966[.5[z3,z4],z0]; numeric t; path p; p=z4l{z9-z4}..z6r; t=xpart(p intersectiontimes (z1l--(z1l+2(z0-z1)))); z2l=point t of p; filldraw z0..{z4-z9}z4r --subpath (0,t) of\\(z4l{z9-z4}..z6r) --z2l---z1l..z1r---z2r --subpath (t,0) of\\(z3l{z9-z3}..z5r) --z3r{z9-z3}..z0 & cycle; % arrowhead and stem penlabels(0,1,2,3,4,5,6,9); endchar; iff known curly_wedge_up_arrow: cmchar "Upwards accumulate symbol"; beginchar(curly_wedge_up_arrow,12u#,asc_height#,asc_depth#); adjust_fit(0,0); pickup rule.nib; x2=good.x .5w; w:=r:=2x2; lft x1=0; x3=w-x1; bot y1=-d; top y2=h+o; y3=y1; x4=x2; y4=h-(x_height+d); pickup crisp.nib; pos11(rule_thickness,0); pos12(rule_thickness,0); % arrow head nicked from pos13(bar,90); pos14(bar,90); % up_arrow lft x11l=hround(.5w-.5rule_thickness); y11-.5rule_thickness=-d; x10=x11=x12; top y10=top y2; x10-x13=x14-x10=3u+eps; y13=y14=y10-.24asc_height-eps; pos15(bar,angle(z14-z10)); z15l=z10; pos16(bar,angle(z13-z10)); z16l=z10; z19=.381966[.5[z13,z14],z10]; numeric t; path p; p=z14l{z19-z14}..z16r; t=xpart(p intersectiontimes((x12r,-d)--(x12r,h))); y12=ypart point t of p; filldraw z10..{z14-z19}z14r--subpath (0,t) of\\(z14l{z19-z14}..z16r) --z12r -- % ---z11r..z11l--- z12l--subpath (t,0) of\\(z13l{z19-z13}..z15r) --z13r{z19-z13}..z10 & cycle; % arrowhead pickup rule.nib; numeric t; path p; p=z1{z4-z1}..{up}z2; t=xpart(p intersectiontimes((0,y12)--(w,y12))); draw subpath (0,t) of\\(z1{z4-z1}..{up}z2); % left arm draw subpath (0,t) of\\(z3{z4-z3}..{up}z2); % right arm penlabels(10,11,12,13,14,15,16,19); labels(1,2,3,4); endchar; iff known curly_wedge_down_arrow: cmchar "Downwards accumulate symbol"; beginchar(curly_wedge_down_arrow,12u#,asc_height#,asc_depth#); adjust_fit(0,0); pickup rule.nib; x2=good.x .5w; w:=r:=2x2; lft x1=0; x3=w-x1; bot y1=-d; top y2=h+o; y3=y1; x4=x2; y4=h-(x_height+d); pickup crisp.nib; numeric theta,delta; theta=angle(z4-z1); delta=3u++.24asc_height; pos11(rule_thickness,-90+theta); pos12(rule_thickness,-90+theta); pos13(bar,-180+theta); pos14(bar,-180+theta); lft x10=0; bot y10=-d; x11=w; z11=z10+whatever*(dir theta); % where the arrow stem would go y13a=y10; x14a=x10; x13a-x10=y14a-y10=delta+eps; z13=z13a rotatedaround(z10,theta-45); z14=z14a rotatedaround(z10,theta-45); pos15(bar,theta+45); z15l=z10; pos16(bar,theta-45); z16l=z10; z19=.381966[.5[z13,z14],z10]; numeric t; path p; p=z14l{z19-z14}..z16r; t=xpart(p intersectiontimes (z11l--(z11l+2(z10-z11)))); z12l=point t of p; filldraw z10..{z14-z19}z14r --subpath (0,t) of\\(z14l{z19-z14}..z16r) --z12l -- % ---z11l..z11r--- z12r --subpath (t,0) of\\(z13l{z19-z13}..z15r) --z13r{z19-z13}..z10 & cycle; % left arrowhead numeric theta,delta; theta=angle(z3-z4); delta=3u++.24asc_height; pos21(rule_thickness,90+theta); pos22(rule_thickness,90+theta); pos23(bar,theta); pos24(bar,theta); rt x20=w; bot y20=-d; x21=0; z21=z20+whatever*-(dir theta); % where the arrow stem would go x23a=x20; y24a=y20; y23a-y20=x20-x24a=delta+eps; z23=z23a rotatedaround(z20,theta+45); z24=z24a rotatedaround(z20,theta+45); pos25(bar,theta+225); z25l=z20; pos26(bar,theta+135); z26l=z20; z29=.381966[.5[z23,z24],z20]; numeric t; path p; p=z24l{z29-z24}..z26r; t=xpart(p intersectiontimes (z21l--(z21l+2(z20-z21)))); z22l=point t of p; filldraw z20..{z24-z29}z24r --subpath (0,t) of\\(z24l{z29-z24}..z26r) --z22l -- % ---z21l..z21r--- z22r --subpath (t,0) of\\(z23l{z29-z23}..z25r) --z23r{z29-z23}..z20 & cycle; % right arrowhead pickup rule.nib; numeric t; path p; p=z2{down}..{z1-z4}z1; t=xpart(p intersectiontimes(z12l--z12r)); draw subpath (0,t) of\\(z2{down}..{z1-z4}z1); % left arm draw subpath (0,t) of\\(z2{down}..{z3-z4}z3); % right arm penlabels(10,11,12,13,14,15,16,19); labels(1,2,3,4); endchar; iff known fat_slash: cmchar "Fat slash"; beginchar(fat_slash,13u#,body_height#,paren_depth#); numeric fatness; fatness = w-9u; adjust_fit(0,0); pickup rule.nib; rt x1=hround(w-u)+eps; top y1=h+eps; z4 = z1+fatness*right; lft x2=hround(fatness+u)+eps; bot y2=-d-eps; z3 = z2+fatness*right; draw z1--z2--z3--z4--z1; % diagonal labels(1,2); endchar; iff known fat_bslash: cmchar "Fat reverse slash"; beginchar(fat_bslash,13u#,body_height#,paren_depth#); numeric fatness; fatness = w-9u; adjust_fit(0,0); pickup rule.nib; lft x1=hround u-eps; top y1=h+eps; z4 = z1+fatness*right; rt x2=hround(w-fatness-u)+eps; bot y2=-d-eps; z3 = z2+fatness*right; draw z1--z2--z3--z4--z1; % diagonal labels(1,2); endchar; iff known l_bag: cmchar "Left bag bracket"; beginchar(l_bag,8u#,body_height#,paren_depth#); % ht and dp from "left parenthesis" symbol adjust_fit(0,0); pickup rule.nib; lft x0=u; y0=h-2u; x1=1/2[x0,x2]; top y1=h; x2=2/3[x0,x3]; y2=y0; bot rt z3=(w-u,-d); draw z0..z1{right}..z2{down}..{right}z3; penlabels(0,1,2,3); endchar; iff known r_bag: cmchar "Right bag bracket"; beginchar(r_bag,8u#,body_height#,paren_depth#); adjust_fit(0,0); pickup rule.nib; rt x0=w-u; y0=h-2u; x1=1/2[x0,x2]; top y1=h; x2=2/3[x0,x3]; y2=y0; bot lft z3=(u,-d); draw z0..z1{left}..z2{down}..{left}z3; penlabels(0,1,2,3); endchar; iff known var_big_circ: cmchar "Circular circle for copyright, etc."; beginchar(var_big_circ,18u#,asc_height#,desc_depth#); autorounded; adjust_fit(if monospace:-3u#,-3u# else: 0,0 fi); pickup rule.nib; lft x6=hround u; x2=w-x6; y2=.5[h+o,-d-o]; y8-y2 = .5(x2-x6); circle_points; draw_circle; % circle labels(1,2,3,4,5,6,7,8); endchar;